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CVE-2026-125122— compose-lint: Text in a pull request can issue CI workflow commands through compose-lint 0.31.0's JSON and SARIF output on stdout

Quick assessment

Affected
tmatens compose-lint
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

compose-lint 是一款用于 Docker Compose 的安全检查工具，旨在部署前识别危险配置问题。在 0.31.0 版本中，当通过 或 选项将结果输出到标准输出（stdout）时，compose-lint 未对字符串中包含的 操作符进行清理。攻击者可通过拉取请求（Pull Request）将该操作符嵌入服务名称或其他 Compose 配置值中；当该工具以包、pre-commit 钩子或 Docker 镜像的形式运行时，若其向作业日志输出 JSON 或 SARIF 格式内容，GitHub Actions

CVSS 2.3 · Low

Affected Version Matrix 1

VendorProduct Version RangeStatus
tmatens compose-lint = 0.31.0 affected
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I. Basic Information for CVE-2026-125122

Vulnerability Information
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Vulnerability Title
compose-lint: Text in a pull request can issue CI workflow commands through compose-lint 0.31.0's JSON and SARIF output on stdout
Source: CVE Program / CVE List V5
Vulnerability Description
compose-lint is a Docker Compose security linter that identifies dangerous misconfigurations before deployment. In version 0.31.0, compose-lint does not sanitize the ##[ workflow-command opener inside strings written by --format json or --format sarif to stdout. A pull request can place that opener in a service name or other Compose value, and the GitHub Actions runner recognizes it even in the middle of a serialized line when the package, pre-commit hook, or Docker image prints JSON or SARIF to the job log. Writing the output to a file and using the compose-lint GitHub Action are not affected, and the flaw does not change the lint pass or fail result. This issue is fixed in version 0.32.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
日志输出的转义处理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
tmatens compose-lint = 0.31.0 -

II. Public POCs for CVE-2026-125122

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III. Intelligence Information for CVE-2026-125122

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Patches & Fixes for CVE-2026-125122 (1)

Vendor Advisories for CVE-2026-125122 (1)

Vendor Pages for CVE-2026-125122 (1)

Same Patch Batch · tmatens · 2026-11-10 · 5 CVEs total

CVE-2026-125121 5.3 MEDIUM compose-lint: Text in a pull request can still issue CI workflow commands through compose-
CVE-2026-125125 2.3 LOW compose-lint: A symlink in a pull request can issue workflow commands through the compose-
CVE-2026-125124 2.3 LOW compose-lint: Text in a pull request can reach Azure Pipelines as logging commands through
CVE-2026-125123 2.3 LOW compose-lint: A file path in a pull request can issue CI workflow commands through compose

IV. Related Vulnerabilities

Same product: compose-lint
Same vendor: tmatens
Same weakness: CWE-117